On 02/10/17 02:05, Linus Walleij wrote:
On Sun, Sep 17, 2017 at 11:39 AM, Linus Walleij
<linus.walleij@xxxxxxxxxx> wrote:
- The MFD Silicon Motion SM501 is a special case. It dynamically
spawns an I2C bus off the MFD using sm501_create_subdev().
We use an approach to dynamically create a machine descriptor
table and attach this to the "SM501-LOW" or "SM501-HIGH"
gpiochip. We use chip-local offsets to grab the right lines.
We can get rid of two local static inline helpers as part
of this refactoring.
(...)
SM501 users: requesting Tested-by on this patch.
Paging Simtec (if it reaches anyone), Vincent Sanders,
Teddy Wang at Silicon Motion:
I'm fairly sure Simtec is not currently active. See below.
I have no idea if the SM501 is even available for current designs.
Does any of you have an "Anubis" board so you can test GPIO
on this board before/after this patch and see if it checks out right?
I guess it's this board:
http://www.simtec.co.uk/products/BBD20EUROA/
I think that's fairly close.
We did have a couple of other designs done for clients, but they may
not have been available to the general public.
Does anyone know of a commercially obtainable product using
SM501 with reasonable mainline Linux support so I can test it myself?
Getting a bit desperate...
At the moment I have no time to go through the boxes of ex-Simtec stuff
that I still have... quite a lot of my old Simtec stuff has already been
recycled as it has been over five years since leaving.
Yours,
Linus Walleij
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
